Defeating the blocking effect in the filter steered robust compressed domain object detection in MPEG videos

Abstract

In this paper we propose a novel and an elegant approach for defeating Blocking Effect in MPEG-2 video streams. We first take an MPEG2 video stream, extract the motion vectors from P-frames Meanwhile, we will extract the DCT coefficients from I frames, those coefficient include the DC coefficient, and the AC components as well. Then, we will pass the DCT coefficients into a module to calculate the texture of each frame. Later, we will propagate this texture information into P frame using Inverse Motion Compensation Technique. After that, we will change each motion vector based on its texture value as what will be described later. We compare the performance of our system Based on experimental results over MPEG7 testing dataset, based on the standard recall and precision as metrics, our system performance is remarkable and strongly effective. We develop user system interface, where users can maintain the system parameters interactively.